code: def hello_bytes() -> bytes:
      return b"<p>Hello, World!</p>"
  
imports: from __future__ import annotations
  import typing
  from http import HTTPStatus
  from flask import Flask
  from flask import jsonify
  from flask import stream_template
  from flask.templating import render_template
  from flask.views import View
  from flask.wrappers import Response
label_desc: Use image node_id 2 for calling a global function with example usage: hello_bytes() and returns: bytes